In order to create a web site, you need two things - your own domain and a web hosting plan for it. The domain registration is the actual website address which you type in a web browser to access a site, while the hosting space is where your website files will be. These are two very closely related, but separate services, even though many people believe that registering the domain is enough. Very similar to the disk space and the monthly traffic features which a given website hosting plan provides, there are a certain number of registered domains that you can add as hosted i.e. you can have the web content for them in some account even if the domains are in fact registered via a different service provider. In technical terms, it doesn't matter if a domain name is registered and hosted with the exact same company or is registered with one company and directed to a different one - in either case your sites will operate the very same way.